CVE-2025-22039
Severity CVSS v4.0:
Pending analysis
Type:
CWE-125
Out-of-bounds Read
Publication date:
16/04/2025
Last modified:
14/11/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
ksmbd: fix overflow in dacloffset bounds check<br />
<br />
The dacloffset field was originally typed as int and used in an<br />
unchecked addition, which could overflow and bypass the existing<br />
bounds check in both smb_check_perm_dacl() and smb_inherit_dacl().<br />
<br />
This could result in out-of-bounds memory access and a kernel crash<br />
when dereferencing the DACL pointer.<br />
<br />
This patch converts dacloffset to unsigned int and uses<br />
check_add_overflow() to validate access to the DACL.
Impact
Base Score 3.x
7.10
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15 (including) | 6.12.23 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.13 (including) | 6.13.11 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.14 (including) | 6.14.2 (excluding) |
To consult the complete list of CPE names with products and versions, see this page